r/Borrow (2016)
There's a subreddit where people ask for high-risk, high-yield, short-term loans, and various lenders fulfill these loans. My friend and I tried to make money doing this, by underwriting users based on their borrowing and user history. We scraped a ton of data from the site, modeled on this, and set up a service to notify us of good risk to lend to.
ModelingData scrapingRandom ForestProgramming